html {
	width: 100%;
	height: 100%;
	overflow: scroll;
}

body {
	background: url(/img/control/back.jpg) no-repeat;
	height: 100%;
	width: 100%;
	overflow: hidden;
	background-size: cover;
	font-weight: bolder;
}

#box {
	background: rgb(255 255 255 / 92%);
	height: 100%;
	width: 100%;
	overflow: hidden;
	background-size: cover;
	position: absolute;
	/*opacity:0.5;*/
}

.container-fluid {
	height: 100%;
	/*overflow: scroll;*/
	overflow: overlay;

}

.row {
	margin: 60px 20px;
}

.row .col-md-3 {
	display: flex;
	align-content: center;
	justify-content: center;
	align-items: center;
	height: 150px;
	flex-direction:  column;
}

.row .col-md-3 div{
	width: 100px;
	height: 100px;
	cursor: pointer;
	margin-bottom: 10px;
}

.row .col-md-3 span{
	display: block;
}

.row .col-md-3 div img{
	width: 100%;
	height: 100%;
}
